Process for producing indefinite coloring design on sheet material



UNITED STATES ArsNT OFFICE.

RUDOLF SYKORA, 0F BOSTON, MASSACHUSETTS.

PROCESS .FOR PRODUCINGINDEFINITE COLORING DESIGN 0N SHEET MATERIAL.

No Drawing.

' To all whom it may concern Be it known that I, RUDoLF SYKORA, a citizen of the United States, residing at Boston, county of Suffolk, State of Massachusetts, have invented a certain new and useful Improvement in Processes for Producing Indefinite Coloring Design on Sheet Material, of which the following is a speci fication.

The invention .is intended for application to gither paper or fabric. The ornamenting of material with various colors or designs is generally carried out by dyeing, weaving or printing processes. The material so treated is usually covered wholly or partially by one or more colors. In such methods the colors and designs are predetermined and definite. When it is woven, the looms receive their definite color spools to produce a design previously arranged. Each spool feeds through the stool on a definite path. Another common method is to print the design upon the inaterial. I

My invention consists in a new process for producing an indefinite coloring design on various materials by means of a process which is based on chemical reaction, as will be more particularly described and claimed hereinafter.

The invention consists substantially in moistening the web of material on which the coloring design is to be produced, de-

positing upon the moistened web coloring In applying the process to a web which is to be ornamented, it is preferably moistened with water'or with one of the dyes which has been previously dissolved in water. If more than one coloring solution is to be deposited, they can be separately sprayed or deposited by suitable means on the surface of the wetted Web one after the other. r

Specification of Letters Patent.

' Patented Mar. 1, 1921.

Application filed. September 25, 1920.- Serial No. 412,727.

After the web has been wetted and treated W1th the coloring matter there is sprayed or deposited upon it a Zincate solution, producing dehydration on the wetted web, resulting in the indefinite coloring effect aimed at by my process. This solution preferably is made by adding a saturated solution of sodium hydroxid to a saturated solution of ZlIlC chlorid. This is mixed preferably as follows: A saturated solution of sodium hydroxid is added to a saturated solution of zinc chlorid until the precipitate redlssolves in the re-agent. This illustrates one form of producing a zincate, but any other suitable form may be employed.

The property of the salts employed in according to the conditions and the results desired, sometimes to the extent of elimi- V nating one or the other ingredient entirely, as will be hereinafter referred to.

Returning now to the wetted web, the sodium zincate solutionis sprayed or deposited upon the web by any suitable means. When the solution issprayed upon the web, the reaction is-as follows: When the sprayed solution comes in contact with the wetted web, the water in the wetted web which holds the dyes in solution is reacted upon by thecharacteristic afiinity of the solution for water,.and a process of dehydration takes place.- This spreads radially from the point of' contact of the spray or deposit. The colors which are held in solution by their vehicle H O move in the direction'toward the center of greatest moisture, which isjat the periphery of the field of dehydration. At the end of the reaction the colors settle into the texture of the Web at the point to which they were driven, so to speak, thus producing andfeet presented to the eye as an indefinite design. The character ofthe design can be varied and is controlled by the strength and proportions of "the ingredients of the solution and the intensity of its spray or deposit, the amount of water used in dissolving the dyes and the amount of water and coloring matter incorporated into the sign wetted web, the properties and strength of the dyes, the precondition andtexture of the material to be treated;

Although the dyes present various characteristics with reference to the combination with the solution in producingthe design, I do not intend to gointo their chemical properties, since I make no claim relative to the dyes themselves. After the process is completed, the web, which is still wet, is dried by any suitable means.

It may be remarked that the various properties of the dyes, the quality and texture of the material, its condition, whether raw, bleached, dyed or sized, all have a bearing in respect of the general procedure of the process and in the formation of the design. The proper proportion of the chemicals (ineluding dyes) intended to react upon each other, the material upon which the action is to take place and the solution in relation to coloring matter and material, call for considerable skill and experience on the part of the person who is to carry out the-process.

The process already described pertains particularly to the general procedure in ornamenting paper. A technical distinction is -made when cloth is to be treated. When in contact with the web of cloth duringthe process of wetting the cloth. The object of placing the web of paper against the web of cloth is to maintain a uniformity of moisture of the cloth, of whatever description the cloth -may be. The paper underneath the cloth will control the attained form of the design.

The technical significance is that the dewill be screened through the web of cloth upon the paper beneath. At the period when thedehydrating action of the solution is completed the wetness retained in the cloth affords a tendency for the dyes, which are still in a solvent state, to retreat into the area where dehydration took place. The underlying paper effectively prevents this reciprocating action; namely, prevents the dyes from retreating into the area where dehydration took place. i The underlying paper should remain in sz'tu until the design is fully developed and thecolors sufficiently set to make it safe to remove the paper. If the material is cloth, it is preferably run through suitable baths for fixing the colors.

On account of the required variations of the solutions contingent on the variation of material entering into the above described processes of ornamentation, I do not wish to be limited to the particular solution hereinabove described, as it will be obvious that various solutions may be employed which will accomplish similar and desirable effects.

For the purpose of demonstration, I preferably mention a saturated solution of sodium hydroxid. I preferably mention a saturated solution of zinc chlorid, and I preferably mention a combination of both to form a zincate which retains the properties of the two ingredients. Optional to with dyes in solution on a web which is to be ornamented. Neither do I wish to be limited to any specified chemical combination producing dehydration, bleaching or the combination of both as indicated in the property of zincate. I further do not wish to be limited to the manner or mechanical means employed in manipulating the solutions that enter into the process of' ornamentation. r A

When the web is paper alone, it is preferable to brush the water into the web on one side only.

-What I claim is 1. The process of producing indefinite color design in a web of sheet material, con sisting of incorporating into the web, water and dye matter, and then depositing upon the surface of the web while it is still moist a dehydrating solution. l

2. The process of producing indefinite color design in a web of sheet material, con- .sisting of incorporating into the web water and dye matter, and then depositing upon the surface of the web while it is still moist a bleaching solution. i '7 3. The process of producing indefinite color design in aweb of sheet material, consisting of incorporating into the web water and dye matter, andthen depositing upon the surface of the web while it is stillwet a solution containing zincate.

4. The process of producing indefinite color design in a web ofsheet material, consisting of placing a web of cloth and a web of paper incontact with each other, incorporating into the'web ofpaper water and dye 'matter screened through the cloth, and then depositing upon the face of the cloth a solution of a deliquescentsalt and maintaining the two webs in contact with each other until the design is fully, developed.

1 5. The process of producing indefinite coloring design in a web of sheet material,

consisting of'placing a web of cloth and a coloring design in a web of sheet material, consisting of incorporating water and dye matter into the web, and then depositing upon the surface of the web while it is still moist a solution of a deliquescent salt.

7. The process of producing indefinite coloring design in a web of.she et material, consisting of incorporating water and dye matter into the web, and then depositing upon the surface of the web while it is still moist, a solution of a deliquescent salt having a bleaching property. I

8. The process of producing indefinite coloring design in a web of sheet material, consisting of placing a second web in contact with one face of the said first web, depositing upon the outer face of the said first web water and dye matter containing the colors with which the web is to be ornamented, and then depositing upon the outer face of the said first web a solution of a deliquescent salt.

9. The process of producing indefinite coloring design in a web of sheet material, consisting of providing a second web in contact with one face of said first web, depositing upon the outer face of the said first web Water and dye matter containing the colors with which the web 'is to be ornamented, and then depositing upon the outer face of the said first web a solution of a deliquescent salt having a bleaching property.

10. The process of producing indefinite coloring design in a web ,of sheet material, consisting of providing a second web in contact with one face of said first web, depositing upon the outer face of said first web water and dye matter containing the colors with which the web is to be ornamented,

and then depositing upon the outer face of said first web a solution zincate.

11. The process of producing indefinite coloring design upon a web by screening through said web onto another web a coloring solution and a dehydrating solution.

12. The process of producing indefinite coloring design upon plies of web by screening through said plies of web onto another web, a coloring solution and a dehydrating solution. I I

In testimony whereof I affiX my signature.

RUDOLF 1 SYKORA.

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